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' D. 'FRASER'.

MEANS FORGLOSING AND GVONTROLLING HOSTWAY COVERS. No. 278,528. lZ/f//APatented May 29 N. PErEHs.' Phmumagnpher. wmmgm". D. C.

D. FRASER.

MEANS POR CLOSING AND CGNTRJLTG HOISTWAY COVERS. No. 278.528. l PatentedMayZQ, 1883.

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` %Zfzeew. I 672/02@ MKM/m fw d@ L ilo f y of 'one door, passing up overa pulley on the UNITED STATES DANIEL FRASER, loFNEvv YORK, N. Y.,AssIeNoR To THE i HATCH COMPANY, E SAME PLACE.

PATENT OFFICE. t

EXCELSIOR MEANS Foa CLOSING AND coNTao'LLlNc,HolsTwAY-covERs.

SPECIFICATION forming' part of Letters Patent No. 278,528, dated May 29,1883.

Application tiled August 3l, 1882. (No model.)

,lb all whom it may concern.-

. Bel it known that l, DANIEL FRASER, of

`New York, in the county and` State of New York, have invented acertainnew and useful Improvement in Means for Closing and GontrollingHoistway-Covers, of which the following isa specification. E

The improvement consists in the combination, with a number of hingeddoors and a cord or chain for opening and closing them, ot' a number ofcatches for engaging with the doors when opened, and serving to holdthem open independently of the cord or chain, and a connectionbetweenthe catch of one door and an adjacent door, so thatthe closing ofthe last` mentioned door will effect the release of the bination, with anumber of hinged doors and a cord or chain for opening and closing them,of a number of catches for engaging with the doors when opened, andserving to hold them open independently of the cord or chain, andanother cord 0I" chain connected to the catch hoistway, and fastenedtothe upper door,where by the closing ot' the upper door will effect therelease of thelower door from its catch, so that it may be subsequentlyclosed.

The improvement also consists in the combination, with a hinged door forcovering an openingin a hoistway, ot' a slide for closing the l 3 spacebetweena side edge ot' the door and the hoistway, anda bell-crank leverfulcrumed to the door, connected at one end to the slide and at theother to means whereby, on the openingof the door', the slide is shiftedinwardly. The improvement also .consists in the coinbination, with ahingeddoor for covering an opening in a hoistway, ot' a` slide rforclosing the space between a side edge of thedoor and the hoistway, abell-crank leverfulcrumed .to

the door and connected at one end to the slide, and a pin connected tothe other end of t the bell-crank lever, and having a sliding`motionsufcient for operating the-slide when the door is opened andclosed.

. The improvement also consists inthe combination, `with `a hinged doorfor coveringan opening in a hoistway, ot a slide for closing closing ofthe slide, and a spring for sliding the pin rearward, so that it `willeect the retraction of the slide.

The Vimprovement also consists in the combination, with a hinged doorfor covering an opening in a hoistway, of slides for closing spacesbetween the side edges of the doorl and Vthe hoistway, bell-crank leversfulcrumed to 'thedoorand connected at one end to the slides,

and a pinconnected-to the other end of the levers, and having, on theopening and closing ofthe door, a sliding motion sufficient to enable itto effect the shifting of the slides.

In the accompanying drawings, Figure 1 is a central vertical section ofan elevator-hoist- 4 way embodying the invention. Fig. 2; is ahorizontal section of the same, and Fig. 3 is a detail sectional view ofaportion ot' one ot' the doors and adjacent parts, showing more clearlythe sliding pin for operating the slides.

Similar letters of reference designate corresponding parts in ali theiigures.

A designates the hoistway, which may be of the usual form.

B designates the iioors ot' the building in which the hoistway islocated. In these floors are openings a, communicating with thehoistway.

C designates doors for closing the hoistway when it is not in use.Inthis example of my invention these doors are hinged at the back.

to the lower door, and thence to a pulley, e,

arranged at the back ot' the hoistway, just be low this door. The chainVor rope D Vmay be `operated at either Yend by a windlass, E. I

will assume that its lower end passes around suitable pulleys and isfastened to these pulleys, and that its upper end is fastened to thehoistway. When the windlass is turned so as to wind up the chain or ropethe lower door is iirst raised to an upright position, and on itsarriving there the second door is raised in the saine-way, the tensionon, the chain or cord tending to draw it straight, and thereby effectingthe raising of the doors. The doors may, if necessary,be weighted at thefront 4to cause them to close by gravity. They are so constituted as tohave a tendency to fall forward. It is advantageous to have the rope orchain D pass below the door, between the pulleys c and d, because itwill sustain the door, even it' the pivot of the pulley c should breakor work out.

F designates catches arranged on the back of the hoistway, adapted toengage with projections on the front edges ot' the doors when the latterare raised, so as to secure them in Yupright positions and relieve thechain or rope D of strain. These catches may be pivoted in place, andimpelled downward at the forward end by springs or by weight; or theymay have resilient shanks, as shown. To the upper catch is attached acord, H, which passes around a pulley, g, arranged on the back of thehoistway above, and thence down the hoistway, where it is secured to thedoor below, forward of its hinges. When it is desired to release theupper door, O,this cord His pulled so as to disengage its catch from it,and then the windlass E is turned so as to pay out the chain or cord andallow of the descent of the said door. To the catch of the lower door isattached a cord, Gr, which passes up the hoistway, around a pulley, f,arranged on the back ot' the hoistway, above the upper'door, and thenceto the upper door, forward of the hinges, where it is fastened. Thiscord G is so short that just before the upper door closes itpulls thecord sufficiently to ell'ect the disengagement of the catch of the lowerdoor from it. lf, then, the windlass is turned so as to pay out thechain or rope D, the lower door may be closed. The cord H is connectedto the lower door and operated by the closing of said door.

The doors have applied to them slides I, which move laterally outwardwhen the doors are closed to cover the space between the doors and theopenings into the hoistway around the posts, and which move laterallyinward when the doors are opened, so as to pass the posts. Two of theseslides are in this example of my invention shown as applied to the upperdoor, andl but one to the lower door.

Asthe upper door has therefore all that is combined with the lower door,and more, I will describe this feature of my invention partielllarlywith reference to the upper door. This door is shown clearly in Fig. 2.The slides I have shanks fitting into grooves provided in the door forguiding them.

J designates bell-crank levers `fulcrumed independently of each other tothe door. At

the outer ends they have a pivotal connection with the shanks of theslides, and at the inner ends they both have a pivotal connection with apin, K, which is free to slide in the door lengthwise. The rear end ofthis pin is benl transversely, so as to extend downward through a slotor notch, s, in the door. When the door is'closed the bent end of thispin comes in contact with a projection, h, as ,shown in Fig. 3, and isthereby caused to slide through the door and shift the bell-cranklevers, so that they will impel the slides outward. When the door israised the bent end ot' the pin is relieved, and a spring, Il, appliedto the pin, pushes the latter rearwardly and causes the bell-cranklevers to pull the slides inward. I do not confine myself to the use ofthis spring, as the pin K may beso connected and com1 bined with devicesaffixed to the hoistway as to derive all of its necessary movementstherefrom.

It will be observed that the mechanism for operatin g the slides isindependent of 4the means for opening and closing the doors, and that isadapted to give thc slides any desirablev range ot' movement. v

What I claim as my invention, and desire to secureby Letters Patent, is-

1. The combination,with a numberot' hinged doors and a cord or chain foropening and closing them, of a number of catches for engaging with thedoors when opened, and serving to hold them open independently lot' thecord or chain, and a connection between the catch of one door and anadjacent door, so that the closing ofthe last-mentioned door will effectthe release ot' the other door from its catch and admit of its closiu g,substantially as specifled. v

2. The combination, with a number ot'hinged doors and a cord or chainfor opening and closing them, of a number of catches for engaging withthe doors when opened, and servin g to hold them open independently ofthe cord or chain, and another cord or chain connected to the catch ofone door, passing up over a pulley on the hoistway, and fastened to theupper door, whereby the closing of the uppervdoor will effect therelease ot' the lower door from its catch, so that it may besubsequently closed, subtantially as specified.

3. The combination, with a hinged door for covering an opening in ahoistway, ot a slide for closing the space between a side edge ofthedoor and the hoistway, and a bell-crank lever fulcrumed to the door,connected at one end to the slide and at the other to meanswhereby, onthe opening of the door, the slide is shifted inwardly, substantially asspecified.

4. lThe combination, with a hinged door for covering an opening in ahoistway, of a slide for closing the space between a side edge ot thedoor and the hoistway, a bell-crank lever fulcrumed to the door andconnected at one end to the slide, and a pin connected to the other endof the bell-crank lever, and having asliding motion suflicient foroperating thev IOO IOS

278,52s l 3 i slide whenthe door isopened and closed, substantially asspecified.

5. The combination, with a hingeddoor for covering an opening in ahoistway, of a slide for closing the space between a side edge of thedoor and the hoistway, a bell-crank lever fulcrumed to the door andconnected at one end to the slide, a pin connected to the other endofthe bell-crank lever, and being slid forward by the closing of the door,so that it will effect the closing ofthe slide, and a spring for slidingthe pin rearward, so that itwill eiect the retraction of' the slide,substantially as specified 6. The combination, with a hinged door for 15covering an opening in a hoistway, of slides for closing spaces betweenthe side edges `of the doorl and the hoistway, bell-crank leversfulcrumed to the door and connected at one end to the slides, and a pinconnected to the 2o other end of the levers, and having, on the openingand closing of the door, a sliding motion sufficient to enable it toeffect the shifting of the slides, substantially as specified. i DANIELFRASER.

Witnesses: Y

T. J. KEANE, JAMES R. BOWEN.

